It appears that you cannot download the HD (uncompressed) audio once you’ve closed the VST Connect session and re-connect to the same remote performer at a later time.
The tracks and files etc are all shown in the left hand column of the “manager” tab, with a message under each part saying “offline”, even though at the bottom of the VST Connect window there is a message saying "Connected to and we are talking to each other with video working etc and so are definitely “connected”.
In this case there are no files listed in the right hand column, where there is normally a list of files. Clicking “Get HD Files” just returns an error message “empty file” and so on. So there appears to be no way of getting the HD files via this interface once the initial recording session has been closed.
What are you supposed to do if there’s a system glitch, Cubase crash or power failure etc? Or in my case, I had another recording session immediately afterwards, and so I simply didn’t have time to download the HD files at that moment, which would have taken at least an hour.
In the end I had to get the performer to zip up the audio WAV files on their computer (from the VSTConnectPerformer folder) and send them to me, which I then manually inserted into the project, one-by-one. There were 144 takes / files in this session, so this took me 2 hours! This wasn’t a large session (by any means) so this work-around simply isn’t acceptable as a longer term solution.
The information about how the remote (uncompressed) files relate the local (compressed) ones (and they are all different lengths to each other, and not consistently so) and where the remote files should be placed into the Cubase project doesn’t appear to be permanently stored anywhere by the VST Connect plugin (e.g. perhaps within the cpr file or otherwise elsewhere on the local system.)
This appears to be a serious issue / missing feature which makes VST Connect very much less useful than what it might otherwise be.